Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3b7d55a5ad3fd…

MALICIOUS

PDF

79.2 KB Created: 2021-10-24 10:20:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 51d9bd1121848f66c529a54650960091 SHA-1: a1b2675bbfc27bf0c85902706e82fee4c6dceaba SHA-256: c5d3b7d55a5ad3fdad9360ceaa6a3def90fb0aafc323adb61d989fd0590df21e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://finemetal-cn.com/upload/files/tejiwoxonise.pdf In PDF document text
    • https://pediatricpotentialsnj.com/PP/PPpng/files/gufelixunofofaz.pdfIn PDF document text
    • http://thumpamonpally.com/userfiles/file/letaledadojojilabo.pdfIn PDF document text
    • https://at1apigroup3.com/contents/files/xunubegedetut.pdfIn PDF document text
    • http://cwesp.biz/upload/file/37439520832.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/38754425072.pdfIn PDF document text
    • http://lesmashclub.com/imgUpload/files/41416255044.pdfIn PDF document text
    • https://bwawarszawa.pl/upload/file/7272614373.pdfIn PDF document text
    • https://epiphanych.com/images/file/64311748542.pdfIn PDF document text
    • http://js-space.de/userfiles/file/lobibizijofixogex.pdfIn PDF document text
    • https://indicaperu.com/userfiles/file/74890400737.pdfIn PDF document text
    • http://autoscuolauniversale.it/userfiles/files/dezazafavukudoj.pdfIn PDF document text
    • http://premiumdrinks.eu/userfiles/jamafitobaxamufuwafun.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161609f844d38f---fijurobipunonapit.pdfIn PDF document text
    • https://prestinieurope.ch/userfiles/files/99389271084.pdfIn PDF document text
    • https://www.karelo.com/uploads/File/52940625138.pdfIn PDF document text
    • http://tangneylaw.com/admin/images/file/zosowunokevonupak.pdfIn PDF document text
    • http://maudchristan.nl/ckfinder/userfiles/files/kawax.pdfIn PDF document text
    • https://t2sc.me/userfiles/sumoluw.pdfIn PDF document text
    • https://darkoyunpin.com/calisma2/files/uploads/95748744953.pdfIn PDF document text
    • http://telegid.tv/userfiles/file/wedogukex.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/587a75eba4919819e655480a5cdb30b8/nofuvubixipezerusozinu.pdfIn PDF document text
    • https://harrisitalia.it/uploads/file/49710040558.pdfIn PDF document text
    • http://carzip.biz/files/uploads/files/funux.pdfIn PDF document text
    • https://adsbudget.net/userfiles/file/mubidefuvuzub.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/KGDyd8lM0uI/uplcv?utm_term=how+to+remove+track+changes+in+pdfPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE9A 17920 bytes
SHA-256: 2e895bb176a1fdb5364b05ee1a3d21cff87cf043ba0981e906a7451d451d76bb
font_01_sfnt_off0000fd2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11541 11256 bytes
SHA-256: a5d3a70901fffd3c2542093c08c335e1c850b5c2e1eb3083d661335203e32883

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